2nd Periodical Test in Emath 9 (2024)

What is a polynomial function?

• A function with negative exponents

• A function with positive integer exponents

• A function with fractional exponents

• A function with no variables

What is the leading coefficient of the polynomial function f(x) = 4x^3 - 2x + 5?

• 5

• 3

• -2

• 4

How many turning points can a polynomial function of degree n have at most?

• 2n

• n - 1

• n

• n + 1

What does the end behavior of a polynomial function depend on?

• The number of zeros

• The constant term

• The x-intercepts

• The leading coefficient and degree

If the leading coefficient is negative and the degree is odd, what is the end behavior?

• Falls to both sides

• Falls to the left, rises to the right

• Rises to the left, falls to the right

• Rises to both sides

What is the maximum number of real zeros for a polynomial function of degree 4?

• 5

• 4

• 3

• 2

What happens at a zero of even multiplicity on the graph?

• The graph has a sharp turn

• The graph disappears

• The graph touches and turns around

• The graph crosses the x-axis

What is the degree of the polynomial function f(x) = 2x^5 - 3x^2 + 4?

• 4

• 5

• 3

• 2

Which of the following is NOT a characteristic of polynomial functions?

• No breaks or gaps

• Sharp turns

• Smooth, rounded turns

• Continuous graphs

If a polynomial function has a leading coefficient of 0, what can be said about it?

• It has infinite zeros

• It is a constant function

• It is not a polynomial function

• It has no zeros